Remove now obsolete checkdeps copy

tools/checkdeps/PRESUBMIT.py

Index: tools/checkdeps/PRESUBMIT.py
diff --git a/tools/checkdeps/PRESUBMIT.py b/tools/checkdeps/PRESUBMIT.py
deleted file mode 100644
index 10ef63212faebd6452d08353a202509b252fc908..0000000000000000000000000000000000000000
--- a/tools/checkdeps/PRESUBMIT.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""Presubmit script for checkdeps tool.
-"""
-
-
-def CheckChange(input_api, output_api):
-  results = []
-  results.extend(input_api.canned_checks.RunUnitTests(
-      input_api, output_api,
-      [input_api.os_path.join(input_api.PresubmitLocalPath(),
-                              'checkdeps_test.py')]))
-  return results
-
-
-# Mandatory entrypoint.
-def CheckChangeOnUpload(input_api, output_api):
-  return CheckChange(input_api, output_api)
-
-
-# Mandatory entrypoint.
-def CheckChangeOnCommit(input_api, output_api):
-  return CheckChange(input_api, output_api)